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Malicious package

libkillgamemcPyPI

Malicious code in libkillgamemc (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2023-4140
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall libkillgamemc

What this malware does

EsqueleSquad group published nearly 6000 malicious PyPi and NPM packages, executing spyware and information-stealing malware

Malicious versions

all versions

Every published version of this package is considered malicious — remove it entirely.

Indicators of compromise (SHA-256)

1732f872c3303513ec41f1cc207319ee7f929e7ef842f8ef7439ea8e00e57573

Detection & response playbook

Credential / info stealer
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for libkillgamemc (all published versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging libkillgamemc across your stack and pipelines.

  2. If you installed it — respond

    libkillgamemc is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If libkillgamemc was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks libkillgamemc before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. libkillgamemc on PyPI has been identified as a malicious package (all published versions flagged). It should be removed immediately — do not install or keep it in your dependency tree.

References

Credits

  • Checkmarx · finder

Detect & block this

O3 blocks libkillgamemc-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

libkillgamemc (PyPI) malicious package — MAL-2023-4140 | O3 Security